Home / 20,530.62-30,796.74-5,740.92

Finding the Fourth Proportional to 20,530.62, 30,796.74 and 5,740.92

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Solution

The fourth proportional to 20,530.62, 30,796.74 and 5,740.92 is: 8,611.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530.62 : 30,796.74 = 5,740.92 : x
  2. Step 2: Convert to fraction form
    20,530.62/30,796.74 = 5,740.92/x
  3. Step 3: Cross multiply
    20,530.62x = 30,796.74 × 5,740.92
  4. Step 4: Simplify right side
    20,530.62x = 176,801,620.60
  5. Step 5: Solve for x
    x = 176,801,620.60/20,530.62
  6. Step 6: Final answer
    x = 8,611.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.